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Question by Static-Dynamo · Aug 18, 2013 at 08:30 AM · javascriptnoobhingejointtorque

Adding Torque to a Hinge Joint

I am trying to add torque to a hinge joint I have set up between two rigid bodies. Both are set to ignore gravity and to be kinematic. I see no response between the objects when I try to test it. The script appears to function (I do have a button assigned to Fire1 and it is working) but I see no actual motion or movement from the hinge joint.

What am I doing wrong here?

My script reads as follows:

 #pragma strict
 
 function Start () {
 
 }
 
 
 function Update () {
     if(Input.GetButtonDown("Fire1")){
     rigidbody.AddTorque(Vector3.up * 100);
     }
     }

Thank you for any help you can provide.

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Answer by AdenFlorian · Aug 18, 2013 at 09:45 AM

The rigid bodies must have isKinematic unchecked to be able to apply any kind of force to it, or for it to respond to any force.

http://docs.unity3d.com/Documentation/ScriptReference/Rigidbody-isKinematic.html

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avatar image Static-Dynamo · Aug 19, 2013 at 03:20 AM 0
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Thank you, somehow I was not aware of this.

avatar image Andrea_Marchetti · Apr 29, 2017 at 11:49 AM 0
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I have exactly the same problem but my objects have not convex meshes. I need them to not be convex since these objects have holes, which I need. Unfortunately, Unity doesn't support not convex meshes which are not kinematic. I need hinges too. How can I do?

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